The success of Levi's Kingdom began with Levi's 50 1, and the birth of 50 1 was that Levi's and another group of jakob davies applied for a patent for their button jeans in 1873. At that time, 50 1 was a very fit effect after shrinking, which was very popular with workers at that time. Therefore, some people think that Levi's jeans are the product of helping to build the American dream in his early years. Jeans in the thirties all played the role of work clothes, but they tended to be casual, but they were mainly practical designs. In 1960s, Levi's Kingdom expanded its business in Europe, and then swept the whole continent, with its sales volume and fame soaring.

. Jeans culture has been a global collective trend since 1970s, with a breakthrough in style change. From the traditional straight leg style, wide-angle pants and bell-bottoms have been changed. From bell bottoms to radish pants in the 1980s. The appearance changes of jeans went to extremes in the 1970s and 1980s. Levi's has been following the trend of style evolution during this period. In the late 1980s, jeans changed from the previous emphasis on fit and fit to the pursuit of the original flavor of jeans. Together with this trend, LEVI's 50 1 set off another jeans trend, which was also influenced by this trend in the 1990s. In addition to the backflow of 50 1, LEVI's modern series has three branches, which are distinguished by different colors of trademark flags. The "Red Flag" aims to oppose the fashion of "pursuing the original flavor" that is too close to the body (including 501); "Silver Flag" advocates "modern basic" style: paying special attention to high quality, washing technology and production effect; "Orange Flag" has developed other fashionable styles besides the basic styles, and it is a series of products close to the trend in material.